# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-18 11:40:31 EDT # # ---------------------------------- WARNING ---------------------------------------- # Some of the data that you have obtained from this U.S. Geological Survey database # may not have received Director's approval. Any such data values are qualified # as provisional and are subject to revision. Provisional data are released on the # condition that neither the USGS nor the United States Government may be held liable # for any damages resulting from its use. # # More data may be available offline. # For more information on these data, contact USGS Water Data Inquiries. # This file contains the annual peak streamflow data. # # This information includes the following fields: # # agency_cd Agency Code # site_no USGS station number # peak_dt Date of peak streamflow (format YYYY-MM-DD) # peak_tm Time of peak streamflow (24 hour format, 00:00 - 23:59) # peak_va Annual peak streamflow value in cfs # peak_cd Peak Discharge-Qualification codes (see explanation below) # gage_ht Gage height for the associated peak streamflow in feet # gage_ht_cd Gage height qualification codes # year_last_pk Peak streamflow reported is the highest since this year # ag_dt Date of maximum gage-height for water year (if not concurrent with peak) # ag_tm Time of maximum gage-height for water year (if not concurrent with peak # ag_gage_ht maximum Gage height for water year in feet (if not concurrent with peak # ag_gage_ht_cd maximum Gage height code # # Sites in this file include: # USGS 01485500 NASSAWANGO CREEK NEAR SNOW HILL, MD # # Peak Streamflow-Qualification Codes(peak_cd): # 1 ... Discharge is a Maximum Daily Average # 2 ... Discharge is an Estimate # 3 ... Discharge affected by Dam Failure # 4 ... Discharge less than indicated value, # which is Minimum Recordable Discharge at this site # 5 ... Discharge affected to unknown degree by # Regulation or Diversion # 6 ... Discharge affected by Regulation or Diversion # 7 ... Discharge is an Historic Peak # 8 ... Discharge actually greater than indicated value # 9 ... Discharge due to Snowmelt, Hurricane, # Ice-Jam or Debris Dam breakup # A ... Year of occurrence is unknown or not exact # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # C ... All or part of the record affected by Urbanization, # Mining, Agricultural changes, Channelization, or other # F ... Peak supplied by another agency # O ... Opportunistic value not from systematic data collection # R ... Revised # # Gage height qualification codes(gage_ht_cd,ag_gage_ht_cd): # 1 ... Gage height affected by backwater # 2 ... Gage height not the maximum for the year # 3 ... Gage height at different site and(or) datum # 4 ... Gage height below minimum recordable elevation # 5 ... Gage height is an estimate # 6 ... Gage datum changed during this year # 7 ... Debris, mud, or hyper-concentrated flow # 8 ... Gage height tidally affected # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # F ... Peak supplied by another agency # R ... Revised # # agency_cd site_no peak_dt peak_tm peak_va peak_cd gage_ht gage_ht_cd year_last_pk ag_dt ag_tm ag_gage_ht ag_gage_ht_cd 5s 15s 10d 6s 8s 33s 8s 27s 4s 10d 6s 8s 27s USGS 01485500 1950-03-25 215 5.41 USGS 01485500 1951-06-12 258 5.75 USGS 01485500 1952-03-26 486 6.70 USGS 01485500 1953-08-16 988 7.82 USGS 01485500 1954-04-30 430 6.51 USGS 01485500 1955-08-14 920 7.57 USGS 01485500 1955-10-16 348 6.19 USGS 01485500 1956-11-02 542 6.79 USGS 01485500 1958-03-21 761 7.36 USGS 01485500 1959-07-17 597 6.95 USGS 01485500 1959-11-26 361 6.09 USGS 01485500 1961-02-10 653 7.10 USGS 01485500 1962-01-07 669 7.14 USGS 01485500 1963-03-13 615 7.00 USGS 01485500 1964-04-10 597 6.95 USGS 01485500 1965-08-05 121 4.11 USGS 01485500 1966-02-15 200 5.00 USGS 01485500 1967-08-25 452 6.64 USGS 01485500 1968-03-19 434 6.42 USGS 01485500 1969-08-22 480 6.59 USGS 01485500 1969-12-27 437 6.43 USGS 01485500 1971-05-18 347 6.01 USGS 01485500 1972-06-30 1320 7.63 USGS 01485500 1973-02-03 760 7.00 USGS 01485500 1974-08-11 365 6.00 USGS 01485500 1975-03-20 615 6.73 USGS 01485500 1976-01-02 416 6.14 USGS 01485500 1976-10-22 463 6.31 USGS 01485500 1977-12-20 1270 7.37 USGS 01485500 1979-02-26 1940 7.95 USGS 01485500 1979-11-12 1210 7.30 USGS 01485500 1981-02-23 181 4.49 USGS 01485500 1982-02-19 386 5.77 USGS 01485500 1983-04-17 806 6.77 USGS 01485500 1984-03-30 864 6.86 USGS 01485500 1985-09-29 635 6.71 USGS 01485500 1985-12-02 434 6.26 USGS 01485500 1987-01-21 445 6.29 USGS 01485500 1988-04-09 400 6.06 USGS 01485500 1989-08-19 3930 9.07 USGS 01485500 1990-05-30 636 6.39 USGS 01485500 1991-01-13 546 6.19 USGS 01485500 1992-08-19 695 6.51 USGS 01485500 1993-03-14 1210 7.28 USGS 01485500 1994-03-03 1760 7.72 USGS 01485500 1995-03-10 171 4.49 USGS 01485500 1996-08-14 739 6.54 USGS 01485500 1996-12-15 660 6.40 USGS 01485500 1998-01-29 06:00 2300 8.13 USGS 01485500 1999-03-16 14:00 598 6.28 USGS 01485500 2000-03-23 02:00 1320 7.31 USGS 01485500 2001-03-22 21:00 781 6.61 USGS 01485500 2002-09-02 09:00 1100 7.06 USGS 01485500 2003-02-23 21:00 564 6.21 USGS 01485500 2004-04-14 15:00 787 6.62 USGS 01485500 2005-07-09 12:00 1170 7.14 USGS 01485500 2006-09-03 07:45 437 5.82 USGS 01485500 2007-04-17 01:30 699 6.47 USGS 01485500 2008-05-14 03:00 338 5.39 USGS 01485500 2008-12-13 04:00 470 5.89 USGS 01485500 2009-11-13 23:15 1660 7.50 USGS 01485500 2011-08-29 20:45 330 5.53 USGS 01485500 2012-03-02 20:30 175 4.53 USGS 01485500 2012-10-30 21:00 1300 7.25 USGS 01485500 2014-03-31 02:45 467 5.78 USGS 01485500 2015-04-21 20:30 325 5.28 USGS 01485500 2016-09-30 15:15 3380 8.78 2 2016-09-30 1900 8.95 1 USGS 01485500 2017-08-13 12:45 1880 7.71 USGS 01485500 2018-05-19 05:15 2400 8.10 USGS 01485500 2018-10-13 05:00 1400 7.14 USGS 01485500 2020-08-09 02:00 804 6.48 USGS 01485500 2020-12-06 02:30 1600 7.49 USGS 01485500 2022-01-18 16:30 164 4.35 USGS 01485500 2022-12-16 23:00 479 5.85